My father is of Aztec/Mexica descent. I was named Citlalli because of this. Nahuatl is the language of the Aztecs and Citlalli is Nahuatl for star. I have also seen it spelled Xitlalli, however this is probably incorrect as the "X" in nahuatl is pronounced as "sh". There is a hill in Mexico called Citlaltepec - it means "the hill of the star".